Activation energy Biomolecule Active site Carbohydrate Amino acid Carbohydrate "-ase" (ex. amylase) Catalyst ATP (adenosine triphosphate) Chemical structure 1a any molecule that is produced by a living organism; examples are carbohydrates, proteins, lipids, and nucleic acids utilized as a primary energy source for living things; used for structure in plant cell walls - cellulose energy needed to get a chemical reaction started the small portion of an enzyme where substrate molecules bind and undergo a chemical reaction biomolecule made up of carbon, hydrogen, and oxygen atoms monomer of proteins (polypeptides) substance that speeds up the rate of a chemical reaction the spatial arrangement of atoms in a molecule and the chemical bonds that hold the atoms together an enzyme energy currency for the cell; energy-consuming reactions of metabolism are made possible by the energy in this molecule 1b Compound Enzyme-substrate complex Covalent bond Fatty acid Dehydration synthesis Glycerol Disaccharide Hydrogen bond Enzyme Hydrolysis 2a a substrate bound to the active site of an enzyme substance formed by the chemical combination of two or more elements in definite proportions important component of a lipid molecule bond formed by the sharing of valence electrons between atoms the backbone of many lipid molecules a chemical reaction that bonds molecules together by losing a water molecule; monomers are linked together to become polymers two monosaccharides chemically bonded together the attraction between a hydrogen atom with a partial positive charge and another atom with a partial negative charge a chemical reaction that breaks molecules apart by adding a water molecule; polymers are broken down into monomers protein that acts as a biological catalyst; it speeds up chemical reactions by lowering the activiation energy 2b Ionic bond Monomer Lipid Monosaccharide Lipid Nucleic acid Metabolism Nucleic acid Molecule Nucleotide 3a small unit that can join together with other small units to form a polymer single sugar molecule; monomer of a carbohydrate; for example glucose function to store and transmit heredity, or genetic information; ex. deoxyribonucleic acid (DNA), ribonucleic acid (RNA) macromolecule containing carbon, hydrogen, oxygen, nitrogen, and PHOSPHORUS (P) bond formed when one or more electrons are transferred from one atom to another used to store energy and provide insulation; important parts of biological membranes such as the cell membrane; common categories of lipids are fats, oils, and waxes macromolecule made mainly from carbon and hydrogen atoms (very very few oxygen atoms) set of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes smallest unit of most compounds monomer of nucleic acids; 3 parts are: 1) Nitrogen base 2) Sugar compound 3) Phosphate group 3b Peptide bond Polymerization Phosphate bond Polysaccharide Phospholipid Protein Polar molecule Protein Polymer Substrate 4a a process of bonding monomers together in a chemical reaction to form polymers (typically through dehydration synthesis) polymer formed from chemically bonding together many monosaccharides; for example starch a source of nitrogen; control the rate of reactions and regulate cell processes; used to form bones, muscle, hair, skin, etc.; transport things in and out of cells; help fight disease; NOT a primary source of energy (common misconception) macromolecule that contains carbon, hydrogen, oxygen, and NITROGEN reactant in a chemical reaction using an enzyme covalent bond joining amino acids in a protein (polypeptide) a high-energy chemical bond that is especially important between the 2nd and 3rd phosphate groups in an ATP molecule a class of lipids that are a major component of all cell membranes as they can form lipid bilayers a molecule in which the charges are unevenly distributed creating a positive charge on one side and a negative charge on the other; for example a water molecule large compound formed from combinations of many monomers 4b Synthesis 5a a combination of two or more things in order to make something new 5b